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• index-of.js

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package.es.instance.index-of.js Maven / Gradle / Ivy

'use strict';
var isPrototypeOf = require('../../internals/object-is-prototype-of');
var method = require('../array/virtual/index-of');

var ArrayPrototype = Array.prototype;

module.exports = function (it) {
  var own = it.indexOf;
  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.indexOf) ? method : own;
};